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基于SRTMDEM的流域特征信息提取——以鄱阳湖流域为例 被引量:14

Extraction of Watershed Characteristics Based on SRTM DEM:An Application Case in Poyang Lake Basin
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摘要 基于DEM数据提取水文特征因其快速高效,得到了广泛的重视和应用,然而由于传统测绘DEM数据高程获取的问题,提取的水文特征结果的精度不甚理想。本研究选用遥感手段获取的、经过SWBD水系数据预处理的SRTM DEM数据,利用D8水系提取算法实现了鄱阳湖流域的边界提取和亚流域划分。提取结果表明,应用遥感源地形数据提取流域水文特征具有较高的精度和效率,显示了遥感面源数据在更新水文研究基础数据中的优势。 Hydrologic characteristics can be got based on DEM, but because these DEMs are often acquired by traditional method, results are sometimes not proper for use. In this study, characteristics of Poyang Lake Basin are extracted using SRTM DEM based on D8 algorithm, and results show that the extraction of characteristics using area-source remote sensing data is more efficient than the traditional data.
出处 《遥感信息》 CSCD 2008年第4期15-17,70,共4页 Remote Sensing Information
基金 国家自然科学基金(40701112)
关键词 SRTM DEM 鄱阳湖 流域特征 SRTM DEM Poyang Lake watershed characteristics
作者简介 蔡玉林(1974-),男,博士学历,山东高密人,主要从事遥感应用研究。E-mail:yulin_cai@163.com
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参考文献8

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